Blue-milk outlet in centrifugal separators.



.A. L. GHRISTBNSON. BLUE MILK OUTLET m GEN-THIPUGAL snmm'rons.APPLICATION IILBD JULY 20, 19( )8.

982,200; Patented Jan. 17, 191.1.

wii "i 1/35 In 11 nto r 1m: NORRIS Pnsns ca., WASHINGTON, 0. c4

SWEDEN.

BLUE-MILK OUTLET IN CENTRIFUGAL SEPARATORS.

Specification of Letters Patent.

Patented Jan. 17, 1911.

' Application filed July 20, 1908. Serial No. 444,404.

To all whom it may concern:

Be it known that I, Anoor LEVIN CHRIS- TENSON, a subject of the King ofSweden, and resident of Stockholm, in the Kingdom of Sweden, haveinvented new and useful Improvements in Blue-Milk Outlets in GentrifugalSeparators, of which the following is a specification, reference beinghad to the drawing accompanying and forming apart hereof.

This invention relates to improvements in blue milk outlets incentrifugal separators.

In my former application for patent Ser. No. 370850, filed April 29,1907, I have described a blue milk outlet in which the blue milk iscaused to spread in the outer part of the outlet, before leaving thedrum.

The object of the present invention is to obtain the same result,without materially changing the construction of the drums commonly used.

The invention consists, chiefly, in arranging a milk spreading walloutside the outer mouth of the blue milk outlet proper so that the bluemilk issuing from the said outlet will meet the said wall and spread atits inner side before leaving the drum. Preferably, the said wallextends round about the drum, concentrically with the axis thereof, sothat the milk is spread round about the drum and issues in the form of athin conoid. Suitably, the spreading wall is formed by a flangeextending downwardly from the nut screwed on the upper end of the milkinlet tube and serving to connect the parts together.

In the drawing, Figure 1 shows a central vertical section of the upperpart of a centrifugal drum having a milk outlet embodying the invention.Fig. 2 is a crosssection on line AB of Fig. 1.

Referring to the drawing, 1 is the usual milk inlet tube placedcentrally within the drum 2. Inserted into the neck of the drum is aregulating screw 3 adapted to regulate the quantity of milk runningthrough the vertical inner part of the blue milk outlet. Screwed on theupper end of the milk inlet tube is the nut 4 which is provided,according to this invention, with a downwardly projecting flange 5extending in the path of the blue milk issuing from the outer mouth 6 ofthe blue milk outlet. The blue milk issuing from the outlet meets thedownwardly projecting flange 5 and spreads on l l I g the inner surfacethereof round about the drum before issuing in the form of a thinconoid.

It is obvious that the milk spreading wall need not be cylindrical inshape but may have any form whatsoever, such as conical, parabolic, etc.It is also obvious that the said wall need not extend round about thedrum nor be concentric therewith. It may be arranged at any distancefrom the out let allowing the jet of milk issuing from the outlet tomeet the said wall. If the spreading wall is arranged suflicient-ly nearthe outlet, as shown in the figures, it is thought that a vacuum may becreated between the drum and the wall facilitating the issue of thestream of milk.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent is 1. The combination with a centrifugal drumhaving a slot in the neck thereof, of a downwardly-directed flangerotating with the drum and extending in such a position relatively tothe said slot as to form a spreading surface for the milk issuing fromthe said slot.

2. The combination with a centrifugal drum having a slotin the neckthereof, of a nut screwed on the upper part of the drum, said nut havinga flange projecting downwardly in such a position in relation to thesaid slot as to form a spreading surface for the milk issuing therefrom.

3. The combination with a centrifugal drum having a vertical slot in theneck thereof, of a central milk inlet tube rotating with the drum, and anut screwed on the upper end of the said tube, said nut having a flangeprojecting downwardly in such a position in relation to the slot in theneck of the drum as to form a spreading surface for the milk issuingfrom the said slot, substantially as and for the purpose set forth.

4. The combination with a centrifugal separator having a milk outlet, ofregulatingmeans situated in the said outlet, and a downwardly directedmilk spreading wall rotating with the drum and extending outside thesaid outlet, concentrically with the axis of the drum, substantially asand for the purpose set forth.

5. The combination with a centrifugal separator having a milk outlet, ofa regulating screw entering the said outlet, and a downwardly directedmilk spreading wall rotating with the drum and extending outside thesaid outlet, concentrically with the axis of the drum, substantially asand for the purpose set forth.

6. The combination with a centrifugal separator having a milk outlet, ofa regulating screw entering the said outlet, a central milk inlet tuberotating with the drum, and a nut screwed on the upper end of the saidtube, said nut having a downwardly projecting flange forming a rotatingmilk spreading wall extending outside the said outlet, concentricallywith the axis of the drum, substantially as and for the purpose setforth.

7. The combination with a centrifugal drum having a vertically slottedneck, of a central milk inlet tube rotating with the drum, a nut screwedon the upper end of the said tube and adapted to bear on the upper edgeof the neck, and an annular flange projecting downwardly from the saidnut in such a position in relation to the slot in the neck of the drumas to form a rotating spreading surface for the milk issuing from thesaid slot, substantially as and for the purpose set forth.

8. The combination with a centrifugal drum having a neck presenting at1ts top an obliquely extending edge and a slot cut vertically from thesaid edge, of a central milk inlet tube rotating with the drum andhaving threads at its upper end, and a nut screwed on the said threads,said nut having an eccentric annular flange the lower edge of which isobliquely cut and adapted to bear on the oblique upper edge of the neckof the drum, and a concentric annular flange surrounding the former,said latter flange having such a position in relation to the verticalslot in the neck of the drum as to form a rotating spreading surface forthe milk issuing from the said slot, substantially as and for thepurpose set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ALGOT LEVIN CHRISTENSON.

\Vitnesses AUG. SonENsnN, KARL RUNcsKoc.

